| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 627 |
2.6%
|
| 2 | Monthly | 2453 |
10%
|
| 3 | Yearly | 1986 |
8.1%
|
| 4 | Not all | 19522 |
79.4%
|
| Sysmiss | 582 |